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2024-09-05 Minutes of the Code Signing Certificate Working Group

Attendees

Bruce Morton (Entrust), Marco Schambach (IdenTrust), Martijn Katerbarg (Sectigo), Yatesh Bhardwaj (GlobalSign), Atsushi Inaba (GlobalSign), Dean Coclin (Digicert), Inigo Barriera (Sectigo), Brian Winters (IdenTrust), Thomas Zermeno (SSL.com), Tim Crawford, Corey Bonnell (Digicert), Rebecca Kelley (SSL.com), Scott Rea (eMudhra), Brianca Martin (Amazon)

Minutes

  1. Anti-trust reminder was read.
  2. Prior meeting minutes approved: August 22nd.
  3. Max validity of Code Signing certificates: Ian will send out the PR and the proposal on the period change by the end of this week.
  4. EV/OV consolidation: Ian will work with Bruce on a draft proposal. Topic will be discussed at the next Face to Face meeting.
  5. Fall elections: One person nominated for code signing chair, Martijn. Ratification ballot will be sent out next week after the discussion period ends.
  6. Other business: a. Bruce noted that in the S/MIME working group, when the SSL Baseline Requirements (BR’s) are updated, they look at the ballot and determine if they should apply it to the S/MIME BR’s as well. This helps to keep things consistent, especially when a CA issues more than one type of certificate. b. Discussed of several ballots from other groups (S/MIME, TLS) that have either passed or are in draft status and whether or not we could do one clean up ballot or if we needed to have one ballot per item. c. Bruce will review the server group ballots and present a recommendation on whether or not we should include it, not include it or wait until the ballot passes.
  7. Other business: Face to Face Meeting a. CWSWG scheduled for Thursday, 10/10, from 11 am – 1 pm. b. Plan is to go through the CS BR’s, to try to get alignment to align on the direction Microsoft wants to go in with the certificates.
  8. Meeting adjourned. Next meeting: September 19, 2024
Latest releases
Server Certificate Requirements
SC098: Process RFC 8657 CAA Parameters - Jun 16, 2026

Code Signing Requirements
v3.8 - Aug 5, 2024

What’s Changed CSC-25: Import EV Guidelines to CS Baseline Requirements by @dzacharo in https://github.com/cabforum/code-signing/pull/38 Full Changelog: https://github.com/cabforum/code-signing/compare/v3.7...v3.8

S/MIME Requirements
v1.0.15 - Ballot SMC017v2 - Jul 30, 2026

This ballot increases the minimum RSA key size for Root and Subordinate CA certificates in the S/MIME BRs from 2048 to 4096 bits for keys created after September 15, 2026, while retaining the 2048-bit minimum for Subscriber certificates. The ballot further requires that by September 15, 2027, CAs SHALL NOT issue Subscriber certificates from any Sub-CA whose RSA key modulus is less than 3072 bits, effectively sunsetting issuance from legacy 2048-bit Sub-CAs. The ballot also includes minor typographic corrections. This ballot is proposed by Martijn Katerbarg (Sectigo) and endorsed by Ben Wilson (Mozilla) and Stephen Davidson (DigiCert)

Network and Certificate System Security Requirements
Version 2.0.5 (Ballot NS-008) - Jul 9, 2025

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The Certification Authority Browser Forum (CA/Browser Forum) is a voluntary gathering of Certificate Issuers and suppliers of Internet browser software and other applications that use certificates (Certificate Consumers).